Coin control for electric motor-operated machines



1,641,212 Sept. 6 1927- G, w. WERNER COIN CONTROL FOR ELECTRIC MOTOR OPERATED MACHINES Filed June 22/ 1926 was s eet 6,1927.)

UNITED STA as aroma w. wiimnin, or rnmimvA-Nia com coi rnor. roniirmc'raic iroroa'ornaarnn liracnnmsl Application nee mic aa'ieaa'i semi so; new I v The present invention relates to coin'or check controlled devices for electrical cirwits, and aims to provide a novel'and improved coin control device for electric .motor operated machines, such as, for e ra n le, a sound reproducer, which will require t e insertion of a coin or tokento start the ma: chine and which will permit the machine to 'o erate the intended amount at which time t e device opens the motor circuit to pre-' vent further or repeated operation of the machine until another coin is inserted.

The device is intended especially for use on electric motor operated sound re roducers and similar machines provided with auto- 'matic switches for opening the motor-circuits when the machines have completed their operation, .such as, in a sound reproducer, when the record has been played and the finishing end of the sound groove reached. In

combination with such a machine it is the function of the present device to establish the circuit of the motor when a coin is inserted and keep the circuit of the motor closed until the intended operation of the machine I has been completed, whereby the automatic tion.

Another object is the provision of such a device which'may be constructed or built in,

a unit separate and distinct from the inachine itself, and which may be attached to the machine or used at a distance therefrom. It is also an object of the invention to provide such a device which is simple in construction and operation. I With the fore oing and other ob'ects in View, which'will apparent as the escri tion proceeds, the invention resides in t e construction and arrangement of parts, as hereinafter described and claimed, it being understood that changes can be made within the scope of what 18 claimed without dc parting from the spirit of the invention.

The invention is llustrated in the accompanying drawing, wherein- Figure 1 is a diagrammaticalview of'the device as used in combination with an electric motor operated sound reproducer. Fig. 2 is a section on the line 22 of Fig.1. a

the motor is ndicated at 12, having 1 As shown in the drawing the control device is used in combination Wlth a sound reproduoer having an electric motor 7 for rotatin the sound record 8 over which the soun arm, 9 moves when the record is played, and these machines, as well known, are generally equipped with an automatic switch 10 in the circuit of the motor to be opened by a finger or portion 11 carried by the arm 9, when the needle of the sound box reaches the inner end-of the sound groove, in order to auto-v matically etc the machine. The circuit of the terminals 13 whichmay be connected y a plug and socket with the wires of an ordinary electric current supply system, using either alternating or direct current. The motor 7 I and switch 10 are connected in series.

The sound reproducer .is 'llustrated as typical, it being understood that the control ated by an electric-motor and having an automatic switch or circuit breaker for stoppin the machine when it has completed a pre etermined operation.

The device includes a coin chute 14 down which a coin 15 may drop when inserted into the chute, and the device'may have anywell known or suitable means for rejecting spurious or improper coins, slugs, and the like. The insertion of the coin 15 will establish the motor circuit, with the coin, in said circuit.. Thus, two pins or contacts 16 and 17 76 device may be used for. other-machines operare disposed within the chute to be bridged by the coin 15, as seen in Fig. 2,'fornlosing the motor" circuit, as will presently appear.

An electromagnet 18, which may be for either alternating or direct current, controls a the pinv or contact 17, whichis a rod or stem -slidable in guides 22 and 23 and havin an armature 21 thereon within the field o the electromagnet 18, whereby the magnet being energized will attract the armature 21 to retract or withdraw the contact 17 from the chute 14, to let the coin drop down into a suitable receiver or receptacle. The magnet 18 is connected in series in the circuit 12 with the switch 10 and motor-7, and branches 19 and 20 of the circuit are connected with the contacts 17 and 16, respectively, to connect said contacts in series with the. electromagnet, switch 10' and motor 7, whereby the coin 15 in bridging the contacts 16 and 17 will close the circuit and thereby start themotor 7 as well as energizing the magnet 18. Conthe contact 17 into the chute 14 and retracting -the armature 21 away from the magnet 18.

I In operation, when a coin is inserted in the chute 14' and bridges the contacts 16 a'nd'17, this closes the motor circuit, as will be apparent, the current flowing through the motor 7, switch 10, ma et'18 and contacts 16,

17, whereby the mac ine will operate/ The energization of the magnet 18 will attract the armature 21, thereby retracting the contact 17 from the chute 14, so that the coin 15 is released and will drop down the chute into the receiver. The movementv of the armature 21 will brin the contact 25 against the contact 24, there y closing the circuit through the contacts 24 and 25 when the circuit is broken between the contacts 16 and 17 by therelease of the coin. This establishes a stick circuit through the motor 7,

switch 10, magnet 18 and contacts 24, 25,

' energizing contact 1 whereby said circuit is maintained as long as it is not interrupted at any point, inasmuch as the spring 29 will restore the contact 17 and remove the contact 25 from the contact 24, should the circuit be interrupted. Therefore, the machine may complete its operation, and when'such operation has been completed, the automatic .switch ,10 being opened, will break the circuit, thereby dethe magnet 18 and releasing the so that the spring 29 restores said contact and removesthe contact 25 from the contact 24, and preventing further operation of the machine until another coin is inserted. It is apparent that the switch 10 must be closed before the machine is I started.

The device being simple in construction may be constructed in a com act unit, which may be attached to the mac ine, or the device-may be.-located at a distance from the machine, it being noted that the device may be connected ,in the circuit of the motor at any suitable point without having to be assembled with the machine.

Havin thus described the invention, what .is claime asnew is 1. An; electric circuit controller havin contacts to be bridged by the insertion 0 a .coin for closing the circuit, one of said-contacts being movable, and means operable by such closing of the circuit for thereafter keeping the circuit closed as a stick circuit and for moving said contact to release the 2. An electric circuit controller comprising in combination with an electric circuit, an electromagnet in said circuit, a coin chute, contacts in said chute to be bridged by a 00in, one contact being movable and being controlled by said electromagnet to be retracted for releasin the coin when the electroma et is energized, said contacts being in sait circuit in series with the'electromagnet, and circuitclosing means in said circuit in series with the electroma etand in parallel with said contacts to eep-the circuit closed while the electromagnet is energized.

3. An electric circuit controller comprismg in combination with an electric circuit,

an electromagnet in saidcircuit, a coin chute,

a movable contact in said circuit in series with the electromagnet arranged for the closing of said circuit by the engagement of a coin in said chute with said contact, said contact being under the control of said electromagnet to be retracted when the electromagnet is energized so as to release the coin, and means for maintaining the circuit closed, as a stick circuit, while the electromagnet is energized.

4. An electrical circuit havin stick means for opening the circuit when t e circuit is broken, and means'arranged to close said stick means by the insertion of a coin and then to retain the coin until the stick means is closed and to immediately release the coin. 5. An electric circuit including an electromagnet and means controlled by the electromagnet to keep the circuit closed as a stick circuit, and means arranged to energize said electromagnet by the insertion of a coin and to retain the coin until the electromagnet is energized and to then immediately release the coin.

6. An electric circuit includin an electromagnet stick means contro led by the electroma inetfltofopen the circuit when'the circuit*is- Token at another point, and contact'means under the influence of the electromagnet connected in circuit with the electromagnet for completing the circuit of the electromagnet by theinsertion of a coin and operable to retain the coin until the electromagnet is energized and to then immediately release the coin.

In testimony whereof I hereunto aflix my signature.

, GEORGE W. WERNER. 

